You essentially have to make your own "Graal" (Engine, servers, sprites) which requires a much greater requirement of skill, knowledge and is equally as time consuming.

It should be important to note that this isn't just applicable to Graal servers. As much as we'd like to see projects succeed in general it takes a significant amount of planning, ambition, and commitment to actually follow through and complete them.

Graal also has other significant issues with it's business model that make it more of a stepping-stone than a platform you want to commit to, especially if you don't have ties/relations to management at the top.